Realization of Logic Gates Using Universal Gates

2 years ago .

Digital circuits are more frequently constructed with NAND or NOR gates than with AND and OR gates. This is because NAND and NOR gates are easier to fabricate with electronic components. Here we shall see the realization of complex logic gates using these two universal gates.

Steps to be followed in the process of implementation of Logic Gates:

Step 1:

For NAND implementation, add Bubbles at the outputs of AND gates and at the inputs of OR gates.

For NOR implementation, add Bubbles at the outputs of OR gates and at the inputs of AND gates.

Step 2:

Add an inverter symbol wherever you created a Bubble.

Step 3:

Ignore cascading connection of two NOT gates, if any are present.

Step 4:

Replace all gates with NAND gates or NOR gates depending on the type of implementation.